FIELD: plastic working of metals, namely methods for bending members of pipeline with filler due to pulling them through die hole, possibly in aircraft- and ship making, in other industry branches.
SUBSTANCE: method comprises steps of pulling tube blank with filler under pressure in its cavity through curvilinear groove777; increasing pressure of filler as pulling blank.
EFFECT: improved quality of branch pipes due to elimination of flaws of bent pieces.
2 dwg, 2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MAKING SHARPLY BENT BRANCH PIPES BY BENDING | 1994 |
|
RU2094151C1 |
| METHOD OF MAKING FLEXIBLE RETURN BENDS | 2013 |
|
RU2528928C1 |
| METHOD OF MAKING THE FLEXIBLE RETURN BENDS | 2012 |
|
RU2510806C2 |
| HYDRAULIC PRESS FOR SHAPING SHARPLY BENT BRANCH PIPES | 1998 |
|
RU2172221C2 |
| METHOD OF FORMING RETURN BENDS | 2012 |
|
RU2506134C1 |
| METHOD AND DIE FOR FORMING STEEP-CURVED BRANCH PIPES | 1993 |
|
RU2047405C1 |
| METHOD OF BENDING SHARPLY BENT BRANCH PIPES | 1989 |
|
RU1741344C |
| METHOD OF MAKING SHARPLY BENT BRANCH PIPES BY BENDING | 1987 |
|
RU1466084C |
| TUBE BLANK FILLER | 0 |
|
SU1031562A1 |
| MANDREL FOR BENDING TUBES | 1986 |
|
RU1417281C |
